Detailed Error Information [Bfm #29 (1Dh)] - Mitsubishi FX3UC SERIES User Manual

FX Series Programmable Controllers
3UC
User's Manual - Hardware Edition

12.7.3 Detailed error information [BFM #29 (1Dh)]

1. Detailed description
Each type of error is assigned to a bit of the buffer memory [BFM #29 (1Dh)]. The status is indicated by the 0
(OFF)/1 (ON) status of each bit.
Bit Function
Link error in
b0
some stations
Link error in
b1
all stations
Remote I/O
b2
error
Out-of-
b3 control-range
station error
Transmission
b4 speed setting
error
b5
RD station
b6
setting error
EEPROM
b7
error
DIP switch
b8
changed
b9 to b14
Hardware
b15
error
Description
Turns ON when link error has occurred in some
stations. [Turns ON when any bit in BFM #4 (4h) to
7 (7h) have turned ON.]
For the station number in which the error has
occurred, refer to the link error station information
[BFM #4 (4h) to 7 (7h)].
Turns ON when data link error has occurred in all
stations.
Turns ON when remote I/O error has occurred.
[Turns ON when any bit in BFM #8 (8h) to 11 (Bh)
have turned ON.]
For the station number, refer to the remote I/O error
information [BFM #8 (8h) to 11 (Bh)].
For the type of error, refer to the instruction manual
of the appropriate remote station.
Turns ON when a remote station not registered in
the detailed remote station information [BFM #32
(20h) to #95 (5Fh)] is connected to the network.
Turns ON when the transmission speed setting DIP
switch is set to an incompatible position.
- Prohibited to use
Turns ON when a RD station is connected to a
station number outside the range No. 49 to No. 64.
Turns ON when a RD station is used in 4-point
mode.
Turns ON when a RD station is connected to a
station number outside the range No. 49 to No. 64.
Turns ON when a RD station is used in 4-point
mode.
Turns ON when the DIP switch setting is changed
during operation.
- Prohibited to use
Turns ON when an abnormality is detected in the
self-loop-back test.
12 Test Operation, Adjustment, Maintenance and Troubleshooting
12.7 FX3UC-32MT-LT Built-in CC-Link/LT Troubleshooting
When the cause of the error is
eliminated, the error flag is
automatically restored.
When the cause of the error is
eliminated, the error flag is
automatically restored.
When the cause of the error is
eliminated, the error flag is
automatically restored.
If the station number of the
connected remote station is smaller
than the final station number, the
error flag is automatically restored
when the cause of the error is
eliminated.
If the station number of the
connected remote station is larger
than the final station number, the
error flag is restored when the cause
of the error is eliminated and is
followed by a power reset.
When the cause of the error is
eliminated, and power is reset, the
error flag is automatically restored.
When the cause of the error is
eliminated and the power is reset, the
error flag is automatically restored.
If the case that a request to write to
the EEPROM is given in any mode
other than CONFIG mode, the error
flag is automatically restored when
the request to write to the EEPROM
is cleared.
In the case of EEPROM write error or
read error, the error flag is not
restored.
When the DIP switch setting is
returned to original status at the time
of power ON, the error flag is
automatically restored.
If the DIP switch setting must be
changed, reset the power.
This error flag is not restored
because something is wrong with the
hardware.
Error flag restoration operation
-
-
11
12
A
B
C
D
E
F
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